Great to find this forum after all my years using mini disk Equipment to date, Sony 707, Tascam 301. Sony 980, and just bought a Rh10 so here's my first RH 10 ? I downloded a podcast MP3 file {MPEG 4 file in think} tried to download to RH10 and got a can't play message. Then went back and converted to A Track but still got same message. can anyone help Thanks Sandy